Note 6 - Acquisitions and Divestitures - Maximum Deferred Consideration Payments (Details) $ in Thousands	Mar. 29, 2025 USD ($)
Payable in fiscal 2025	$ 212
Thereafter	$ 0

Represents estimated future contingent consideration payments to be made thereafter.

No definition available.

Name:	rcmt_EstimatedFutureContingentConsiderationPaymentsThereafter
Namespace Prefix:	rcmt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant